Lexus RC F (2022 year). Manual in english

167

4-5. Using the driving support systems

Driving

Lane departure alert function is operating.

Operation display of steering
wheel operation support

Indicates that steering wheel assistance of
the steering control function is operating.

Lane departure alert function dis-
play

Displayed when the multi-information dis-
play is switched to the driving assist system
information screen.



Inside of displayed white lines is
white

Indicates that the system is recognizing
white (yellow) lines. When the vehicle
departs from its lane, the white line dis-
played on the side the vehicle departs from
flashes orange.



Inside of displayed white lines is
black

Indicates that the system is not able to rec-
ognize white (yellow) lines or is temporar-
ily canceled.

■

Operation conditions of each function

●

Lane departure alert function

This function operates when all of the fol-

lowing conditions are met.

• LDA is turned on.

• Vehicle speed is approximately 32 mph

(50 km/h) or more.

• System recognizes white (yellow) lines.

• Width of traffic lane is approximately 9.8

ft. (3 m) or more.

• Turn signal lever is not operated.

• Vehicle is driven on a straight road or

around a gentle curve with a radius of

more than approximately 492 ft. (150 m).

• No system malfunctions are detected.

(



P.169)

●

Steering control function

This function operates when all of the fol-

lowing conditions are met in addition to the

operation conditions for the lane depar-

ture alert function.
• Setting for “Steering Assist” in

of the

multi-information display is set to “On”.

(



P.73)

• Vehicle is not accelerated or decelerated

by a certain amount or more.

• Steering wheel is not operated with a

steering force level suitable for changing

lanes.

• ABS, VSC, TRAC and PCS are not oper-

ating.

• TRAC or VSC is not turned off.

• Hands off steering wheel warning is not

displayed. (



P.168)

●

Vehicle sway warning function

This function operates when all of the fol-

lowing conditions are met.
• Setting for “Sway Warning” in

of the

multi-information display is set to “On”.

(



P.73)

• Vehicle speed is approximately 32 mph

(50 km/h) or more.

• Width of traffic lane is approximately 9.8

ft. (3 m) or more.

• No system malfunctions are detected.

(



P.169)

■

Temporary cancellation of functions

When the operation conditions are no lon-

ger met, a function may be temporarily can-

168

4-5. Using the driving support systems

celed. However, when the operation

conditions are met again, operation of the

function is automatically restored. (



P.167)

■

Steering control function

Depending on the vehicle speed, lane

departure situation, road conditions, etc.,

the driver may not feel the function is oper-

ating or the function may not operate at all.

■

Lane departure alert function

The warning buzzer may be difficult to hear

due to external noise, audio playback, etc.

Also, it may be difficult to feel steering

wheel vibrations due to the road conditions

etc.

■

Hands off steering wheel warning

In the following situations, a warning mes-

sage urging the driver to hold the steering

wheel and the symbol shown in the illustra-

tion are displayed on the multi-information

display to warn the driver.The warning stops

when the system determines that the driver

holds the steering wheel. Always keep your

hands on the steering wheel when using this

system, regardless of warnings.

●

When the system determines that the

driver is driving without holding the steer-

ing wheel while the system is operating

If the driver continues to keep their hands
off of the steering wheel, the buzzer
sounds, the driver is warned and the func-
tion is temporarily canceled. This warning
also operates in the same way when the
driver continuously operates the steering
wheel only a small amount.
The buzzer also sounds even if the alert
type is set to

Depending on the vehicle condition and
road conditions, the warning may not

operate. Also, if the system determines that
the vehicle is driving around a curve, warn-
ings will occur earlier than during
straight-lane driving.

●

When the system determines that the

driver is driving without holding the steer-

ing wheel while the steering wheel assist

of the steering assist function is operat-

ing.

If the driver continues to keep their hands
off of the steering wheel and the steering
wheel assist is operating, the buzzer
sounds and the driver is warned. Each time
the buzzer sounds, the continuing time of
the buzzer becomes longer.
The buzzer also sounds even if the alert
type is set to

■

Vehicle sway warning function

When the system determines that the vehi-

cle is swaying while the vehicle sway warn-

ing function is operating, a buzzer sounds

and a warning message urging the driver to

rest and the symbol shown in the illustration

are simultaneously displayed on the

multi-information display.

Depending on the vehicle and road condi-

tions, the warning may not operate.

■

White (yellow) lines are only on one side

of road

The LDA system will not operate for the

side on which white (yellow) lines could not

be recognized.

■

Conditions in which functions may not

operate properly

In the following situations, the camera sen-

sor may not detect white (yellow) lines and

various functions may not operate normally.

169

4-5. Using the driving support systems

Driving

●

There are shadows on the road that run

parallel with, or cover, the white (yellow)

lines.

●

The vehicle is driven in an area without

white (yellow) lines, such as in front of a

tollgate or checkpoint, or at an intersec-

tion, etc.

●

The white (yellow) lines are cracked,

“Botts’ dots”, “Raised pavement marker”

or stones are present.

●

The white (yellow) lines cannot be seen

or are difficult to see due to sand, etc.

●

The vehicle is driven on a road surface

that is wet due to rain, puddles, etc.

●

The traffic lines are yellow (which may be

more difficult to recognize than lines that

are white).

●

The white (yellow) lines cross over a curb,

etc.

●

The vehicle is driven on a bright surface,

such as concrete.

●

The vehicle is driven on a surface that is

bright due to reflected light, etc.

●

The vehicle is driven in an area where the

brightness changes suddenly, such as at

the entrances and exits of tunnels, etc.

●

Light from the headlights of an oncoming

vehicle, the sun, etc. enters the camera.

●

The vehicle is driven where the road

diverges, merges, etc.

●

The vehicle is driven on a slope.

●

The vehicle is driven on a road which tilts

left or right, or a winding road.

●

The vehicle is driven on an unpaved or

rough road.

●

The vehicle is driven around a sharp

curve.

●

The traffic lane is excessively narrow or

wide.

●

The vehicle is extremely tilted due to car-

rying heavy luggage or having improper

tire pressure.

●

The distance to the preceding vehicle is

extremely short.

●

The vehicle is moving up and down a

large amount due to road conditions

during driving (poor roads or road

seams).

●

The headlight lenses are dirty and emit a

faint amount of light at night, or the beam

axis has deviated.

●

The vehicle is struck by a crosswind.

●

The vehicle has just changed lanes or

crossed an intersection.

●

Snow tires, etc. are equipped.

■

Warning message

If the following warning message is dis-

played on the multi-information display and

the LDA indicator illuminates in orange, fol-

low the appropriate troubleshooting proce-

dure.

Warning mes-
sage

Details/Actions

“Lane Depar-
ture Alert
Malfunction
Visit Your
Dealer”

The system may not be
operating properly.



Have the vehicle

inspected at your Lexus
dealer.

“Front Cam-
era Unavail-
able Remove
Debris On
Windshield”

Dirt, rain, condensation,
ice, snow, etc. are present
on the windshield in front
of the camera sensor.



Turn the LDA system off,

remove any dirt, rain, con-
densation, ice, snow, etc.
from the windshield, and
then turn the LDA system
back on.

170

4-5. Using the driving support systems

If a different warning message is displayed,

follow the instructions displayed on the

screen.

■

Customization

The following settings can be changed.

For how to change settings, refer to P.358

“Front Cam-
era Unavail-
able”

The operation conditions
of the camera sensor (tem-
perature, etc.) are not met.



When the operation

conditions of the camera
sensor (temperature, etc.)
are met, the LDA system
will become available. Turn
the LDA system off, wait
for a little while, and then
turn the LDA system back
on.

“Lane Depar-
ture Alert
Unavailable”

The LDA system is tempo-
rarily canceled due to a
malfunction in a sensor
other than the camera sen-
sor.



Turn the LDA system off

and follow the appropriate
troubleshooting proce-
dures for the warning mes-
sage. Afterward, drive the
vehicle for a short time,
and then turn the LDA sys-
tem back on.

“Lane Depar-
ture Alert
Unavailable
Below
Approx
32MPH”

The LDA system cannot be
used as the vehicle speed
is less than approximately
32 mph (50 km/h).



Drive the vehicle at

approximately 32 mph
(50 km/h) or more.

“Lane Depar-
ture Alert
Unavailable at
Current
Speed”

The LDA system cannot be
used as the vehicle speed
is too high.



Slow down.

Warning mes-
sage

Details/Actions

Function

Setting details

Lane departure
alert function

Adjust alert sensitivity

Adjust alert type

Steering control
function

Turn steering wheel
assistance on and off

Vehicle sway
warning function

Turn function on and
off

Adjust alert sensitivity

171

4-5. Using the driving support systems

Driving

Vehicle-to-vehicle distance switch
Display
Set speed
Indicators

Cruise control switch

Dynamic radar cruise con-
trol

In vehicle-to-vehicle distance con-
trol mode, the vehicle automati-
cally accelerates and decelerates
to match the speed changes of the
preceding vehicle even if the accel-
erator pedal is not depressed. In
constant speed control mode, the
vehicle runs at a fixed speed.

Use the dynamic radar cruise con-
trol on freeways and highways.



Vehicle-to-vehicle distance con-
trol mode (



P.173)



Constant speed control mode
(



P.176)

System Components

WARNING

■

Before using dynamic radar cruise

control

●

Driving safely is the sole responsibility

of the driver. Do not rely solely on the

system, and drive safely by always pay-

ing careful attention to your surround-

ings.

●

The dynamic radar cruise control pro-

vides driving assistance to reduce the

driver’s burden. However, there are

limitations to the assistance provided.

Read the following conditions care-

fully. Do not overly rely on this system

and always drive carefully.

• When the sensor ma

y not be correctly

detecting the vehicle ahead:



P.178

• Conditions under which the vehi-

cle-to-vehicle distance control mode

may not function correctly:



P.178

●

Set the speed appropriately depend-

ing on the speed limit, traffic flow, road

conditions, weather conditions, etc.

The driver is responsible for checking

the set speed.

●

Even when the system is functioning

normally, the condition of the preced-

ing vehicle as detected by the system

may differ from the condition

observed by the driver. Therefore, the

driver must always remain alert, assess

the danger of each situation and drive

safely. Relying on this system or assum-

ing the system ensures safety while

driving can lead to an accident, result-

ing in death or serious injury.

●

Switch the dynamic radar cruise con-

trol off using the “ON/OFF” button

when not in use.

172

4-5. Using the driving support systems

WARNING

■

Cautions regarding the driving assist

systems

Observe the following precautions, as

there are limitations to the assistance

provided by the system.

Failure to do so may cause an accident

resulting in death or serious injury.

●

Assisting the driver to measure follow-

ing distance

The dynamic radar cruise control is only

intended to help the driver in determin-

ing the following distance between the

driver’s own vehicle and a designated

vehicle traveling ahead. It is not a mecha-

nism that allows careless or inattentive

driving, and it is not a system that can

assist the driver in low-visibility condi-

tions. It is still necessary for driver to pay

close attention to the vehicle’s surround-

ings.

●

Assisting the driver to judge proper

following distance

The dynamic radar cruise control deter-

mines whether the following distance

between the driver’s own vehicle and a

designated vehicle traveling ahead is

within a set range. It is not capable of

making any other type of judgement.

Therefore, it is absolutely necessary for

the driver to remain vigilant and to deter-

mine whether or not there is a possibility

of danger in any given situation.

●

Assisting the driver to operate the

vehicle

The dynamic radar cruise control has

limited capability to prevent or avoid a

collision with a vehicle traveling ahead.

Therefore, if there is ever any danger, the

driver must take immediate and direct

control of the vehicle and act appropri-

ately in order to ensure the safety of all

involved.

■

Situations unsuitable for dynamic

radar cruise control

Do not use dynamic radar cruise control

in any of the following situations.

Doing so may result in inappropriate

speed control and could cause an acci-

dent resulting in death or serious injury.

●

Roads where there are pedestrians,

cyclists, etc.

●

In heavy traffic

●

On roads with sharp bends

●

On winding roads

●

On slippery roads, such as those cov-

ered with rain, ice or snow

●

On steep downhills, or where there

are sudden changes between sharp up

and down gradients

Vehicle speed may exceed the set

speed when driving down a steep hill.

●

At entrances to freeways and highways

●

When weather conditions are bad

enough that they may prevent the sen-

sors from detecting correctly (fog,

snow, sandstorm, heavy rain, etc.)

●

When there is rain, snow, etc. on the

front surface of the radar sensor or

camera sensor

●

In traffic conditions that require fre-

quent repeated acceleration and

deceleration

●

During emergency towing

●

When an approach warning buzzer is

heard often

173

4-5. Using the driving support systems

Driving

This mode employs a radar sensor to detect the presence of vehicles up to approx-
imately 328 ft. (100 m) ahead, determines the current vehicle-to-vehicle following
distance, and operates to maintain a suitable following distance from the vehicle
ahead.

Note that vehicle-to-vehicle distance will close in when traveling on downhill slopes.

Example of constant speed cruising
When there are no vehicles ahead

The vehicle travels at the speed set by the driver. The desired vehicle-to-vehicle distance
can also be set by operating the vehicle-to-vehicle distance switch.

Example of deceleration cruising and follow-up cruising
When a preceding vehicle driving slower than the set speed appears

When a vehicle is detected running ahead of you, the system automatically decelerates
your vehicle. When a greater reduction in vehicle speed is necessary, the system applies
the brakes (the stop lights will come on at this time). The system will respond to changes in
the speed of the vehicle ahead in order to maintain the vehicle-to-vehicle distance set by
the driver. Approach warning warns you when the system cannot decelerate sufficiently to
prevent your vehicle from closing in on the vehicle ahead.

Example of acceleration
When there are no longer any preceding vehicles driving slower than the set
speed

The system accelerates until the set speed is reached. The system then returns to constant
speed cruising.

Driving in vehicle-to-vehicle distance control mode

174

4-5. Using the driving support systems

Press the “ON/OFF” button to acti-
vate the cruise control.

Radar cruise control indicator will come on

and a message will be displayed on the

multi-information display.
Press the button again to deactivate the

cruise control.
If the “ON/OFF” button is pressed and

held for 1.5 seconds or more, the system

turns on in constant speed control mode.

(



P.176)

Accelerate or decelerate, with
accelerator pedal operation, to the
desired vehicle speed (at or above
approximately 30 mph [50 km/h])
and push the lever down to set the
speed.

Cruise control “SET” indicator will come

on.
The vehicle speed at the moment the lever

is released becomes the set speed.

To change the set speed, operate the
lever until the desired set speed is dis-
played.

Increases the speed

Decreases the speed

Fine adjustment: Momentarily move
the lever in the desired direction.
Large adjustment: Hold the lever up or
down to change the speed, and release
when the desired speed is reached.
In the vehicle-to-vehicle distance con-
trol mode, the set speed will be
increased or decreased as follows:

■

For the U.S. mainland and Hawaii

Fine adjustment: By 1 mph (1.6 km/h)

or 1

km/h (0.6 mph)

each time the lever is

operated

Setting the vehicle speed (vehi-
cle-to-vehicle distance control
mode)

Adjusting the set speed

175

4-5. Using the driving support systems

Driving

Large adjustment: Increases or decreases
in 1 mph (1.6 km/h)

or 1 km/h (0.6 mph)

increments for as long as the lever is held

■

For Canada, Guam and Puerto
Rico

Fine adjustment: By 1 mph (1.6 km/h)

or 1

km/h (0.6 mph)

each time the lever is

operated
Large adjustment: Increases or decreases
in 5 mph (8 km/h)

or 5 km/h (3.1 mph)

increments for as long as the lever is held

In the constant speed control mode
(



P.176), the set speed will be

increased or decreased as follows:

Fine adjustment: By 1 mph (1.6 km/h)

1.6 km/h (1 mph)

each time the lever is

operated
Large adjustment: The speed will continue
to change while the lever is held.

: When the set speed is shown in “MPH”

: When the set speed is shown in “km/h”

Pressing the switch changes the vehi-
cle-to-vehicle distance as follows:

Long

Medium

Short

The vehicle-to-vehicle distance is set auto-
matically to long mode when the engine
switch is turned to IGNITION ON mode.
If a vehicle is running ahead of you, the pre-
ceding vehicle mark

will also be dis-

played.

Select a distance from the table below.
Note that the distances shown corre-
spond to a vehicle speed of 50 mph
(80 km/h). Vehicle-to-vehicle distance
increases/decreases in accordance
with vehicle speed.

Changing the vehicle-to-vehicle
distance (vehicle-to-vehicle dis-
tance control mode)

Vehicle-to-vehicle distance set-
tings (vehicle-to-vehicle dis-
tance control mode)

Distance

options

Vehicle-to-vehicle dis-

tance

Long

Approximately 160 ft. (50
m)

Medium

Approximately 130 ft. (40
m)

Short

Approximately 100 ft. (30
m)

176

4-5. Using the driving support systems

Pulling the lever toward you can-
cels the speed control.

The speed control is also canceled when
the brake pedal is depressed.

Pushing the lever up resumes the
cruise control and returns vehicle
speed to the set speed.

However, cruise control does not resume
when the vehicle speed is approximately
25 mph (40 km/h) or less.

When your vehicle is too close to a
vehicle ahead, and sufficient automatic
deceleration via the cruise control is
not possible, the display will flash and
the buzzer will sound to alert the driver.
An example of this would be if another
driver cuts in front of you while you are
following a vehicle. Depress the brake
pedal to ensure an appropriate vehi-
cle-to-vehicle distance.

■

Warnings may not occur when

In the following instances, warnings
may not occur even when the vehi-
cle-to-vehicle distance is small.



When the speed of the preceding
vehicle matches or exceeds your
vehicle speed



When the preceding vehicle is trav-
eling at an extremely slow speed



Immediately after the cruise control
speed was set



When depressing the accelerator
pedal

When constant speed control mode is
selected, your vehicle will maintain a
set speed without controlling the vehi-
cle-to-vehicle distance. Select this
mode only when vehicle-to-vehicle dis-
tance control mode does not function
correctly due to a dirty radar sensor,
etc.

With the cruise control off, press
and hold the “ON/OFF” button for
1.5 seconds or more.

Immediately after the “ON/OFF” button is

pressed, the radar cruise control indicator

Canceling and resuming the
speed control

Approach warning (vehi-
cle-to-vehicle distance control
mode)

Selecting constant speed con-
trol mode

177

4-5. Using the driving support systems

Driving

will come on. Afterwards, it switches to the

cruise control indicator.
Switching to constant speed control mode

is only possible when operating the lever

with the cruise control off.

Accelerate or decelerate, with
accelerator pedal operation, to the
desired vehicle speed (at or above
approximately 30 mph [50 km/h])
and push the lever down to set the
speed.

Cruise control “SET” indicator will come

on.
The vehicle speed at the moment the lever

is released becomes the set speed.
Adjusting the speed setting:



P.174

Canceling and resuming the speed setting:



P.176

■

Dynamic radar cruise control can be set

when

●

The shift lever is in D.

●

Range 4 or higher of D has been selected

by using the paddle shift switch.

●

Vehicle speed is at or above approxi-

mately 30 mph (50 km/h).

■

Accelerating after setting the vehicle

speed

The vehicle can accelerate by operating the

accelerator pedal. After accelerating, the

set speed resumes. However, during vehi-

cle-to-vehicle distance control mode, the

vehicle speed may decrease below the set

speed in order to maintain the distance to

the preceding vehicle.

■

Automatic cancelation of vehi-

cle-to-vehicle distance control mode

Vehicle-to-vehicle distance control mode is

automatically canceled in the following situ-

ations:

●

Actual vehicle speed falls at or below

approximately 25 mph (40 km/h).

●

VSC is activated.

●

TRAC is activated for a period of time.

●

When the VSC or TRAC system is

turned off.

●

The sensor cannot detect correctly

because it is covered in some way.

●

Pre-collision braking is activated.

If vehicle-to-vehicle distance control mode

is automatically canceled for any other

reason, there may be a malfunction in the

system. Contact your Lexus dealer.

■

Automatic cancelation of constant

speed control mode

Constant speed control mode is automati-

cally canceled in the following situations:

●

Actual vehicle speed is more than

approximately 10 mph (16 km/h) below

the set vehicle speed.

●

Actual vehicle speed falls below approxi-

mately 25 mph (40 km/h).

●

VSC is activated.

●

TRAC is activated for a period of time.

●

When the VSC or TRAC system is

turned off.

●

Pre-collision braking is activated.

If constant speed control mode is automati-

cally canceled for any other reason, there

may be a malfunction in the system. Con-

tact your Lexus dealer.

178

4-5. Using the driving support systems

■

Brake system operation sound

If the brakes are applied automatically while

the vehicle is in vehicle-to-vehicle distance

control mode, a brake system operation

sound may be heard. This does not indicate

a malfunction.

■

Warning messages and buzzers for

dynamic radar cruise control

Warning messages and buzzers are used to

indicate a system malfunction or to inform

the driver of the need for caution while driv-

ing. If a warning message is shown on the

multi-information display, read the message

and follow the instructions.

■

When the sensor may not be correctly

detecting the vehicle ahead

In the case of the following and depending

on the conditions, operate the brake pedal

when deceleration of the system is insuffi-

cient or operate the accelerator pedal

when acceleration is required.

As the sensor may not be able to correctly

detect these types of vehicles, the approach

warning (



P.176) may not be activated.

●

Vehicles that cut in suddenly

●

Vehicles traveling at low speeds

●

Vehicles that are not moving in the same

lane

●

Vehicles with small rear ends (trailers

with no load on board, etc.)

●

Motorcycles traveling in the same lane

●

When water or snow thrown up by the

surrounding vehicles hinders the detect-

ing of the sensor

●

When your vehicle is pointing upwards

(caused by a heavy load in the luggage

compartment, etc.)

●

Preceding vehicle has an extremely high

ground clearance

■

Conditions under which the vehi-

cle-to-vehicle distance control mode

may not function correctly

In the case of the following conditions,

operate the brake pedal (or accelerator

pedal, depending on the situation) as nec-

essary.

As the sensor may not be able to correctly

detect vehicles ahead, the system may not

operate properly.

●

When the road curves or when the lanes

are narrow

●

When steering wheel operation or your

position in the lane is unstable

●

When the vehicle ahead of you deceler-

ates suddenly

●

When driving on a road surrounded by a

structure, such as in a tunnel or on a

bridge

●

While the vehicle speed is decreasing to

the set speed after the vehicle acceler-

ates by depressing the accelerator pedal

179

4-5. Using the driving support systems

Driving

The Blind Spot Monitor is a system that
has 2 functions:



The BSM (Blind Spot Monitor) func-
tion
Assists the driver in making a deci-
sion when changing lanes



The RCTA (Rear Cross Traffic Alert)
function
Assists the driver when backing up

These functions use same sensors.

BSM main switch

This switch is for both the BSM function
and RCTA function.
Pressing the switch turns the system on or
off. When the switch is turned on, the indi-
cator on the switch illuminates.

Outside rear view mirror indicators

BSM function:
When a vehicle is detected in a blind spot
of the outside rear view mirrors or
approaching rapidly from behind into a
blind spot, the outside rear view mirror
indicator on the detected side will illumi-
nate. If the turn signal lever is operated
toward the detected side, the outside rear
view mirror indicator will flash.
RCTA function:
When a vehicle approaching from the right
or left at the rear of the vehicle is detected,
both outside rear view mirror indicators
will flash.

Center Display

If a vehicle approaching from the right or
left at the rear of the vehicle is detected,
the RCTA icon (



P.184) for the detected

side will be displayed on the Center Dis-
play.
This illustration shows an example of a
vehicle approaching from both sides of the
vehicle.

RCTA buzzer (RCTA function only)

If a vehicle approaching from the right or
left at the rear of the vehicle is detected, a
buzzer will sound. The buzzer also sounds
for approximately 1 second immediately
after the BSM main switch is operated to
turn the system on.

■

Outside rear view mirror indicator visi-

bility

In strong sunlight, the outside rear view mir-

ror indicator may be difficult to see.

BSM (Blind Spot Monitor)

The Blind Spot Monitor is a system
that uses rear side radar sensors
installed on the inner side of the
rear bumper on the left and right
side to assist the driver in confirm-
ing safety when changing lanes.

Summary of the Blind Spot Mon-
itor

180

4-5. Using the driving support systems

■

Hearing the RCTA buzzer

The RCTA buzzer may be difficult to hear

over loud noises, such as if the audio system

volume is high.

■

When “Blind Spot Monitor Unavailable”

is shown on the multi-information dis-

play

Ice, snow, mud, etc., may be attached to the

rear bumper around the sensors. (



P.180)

The system should return to normal opera-

tion after removing the ice, snow, mud, etc.

from the rear bumper. Additionally, the sen-

sors may not operate normally when driving

in extremely hot or cold environments.

■

When there is a malfunction in the Blind

Spot Monitor

If a system malfunction is detected due to

any of the following, a warning message will

be displayed: (



P.308)

●

A sensor is malfunctioning

●

A sensor is dirty or covered with snow or

a sticker

●

The outside temperature is extremely

high or low

●

Sensor voltage is abnormal

●

A sensor is misaligned

WARNING

■

Handling the radar sensor

Blind Spot Monitor sensors are installed

behind the left and right sides of the rear

bumper respectively. Observe the fol-

lowing to ensure the Blind Spot Monitor

can function correctly.

●

Keep the sensors and the surrounding

areas on the rear bumper clean at all

times.

If a sensor or its surrounding area on

the rear bumper is dirty or covered

with snow, the Blind Spot Monitor may

not operate and a warning message

(



P.308) will be displayed. In this sit-

uation, clear off the dirt or snow and

drive the vehicle with the operation

conditions of the BSM function

(



P.182) satisfied for approximately

10 minutes. If the warning message

does not disappear, have the vehicle

inspected by your Lexus dealer.

●

Do not subject a sensor or its sur-

rounding area on the rear bumper to a

strong impact.

If a sensor is moved even slightly off

position, the system may malfunction

and vehicles may not be detected cor-

rectly.

In the following situations, have your

vehicle inspected by your Lexus

dealer.

• A sensor or its surrounding area is

subject to a strong impact.

• If the surrounding area of a sensor is

scratched or dented, or part of them

has become disconnected.

●

Do not disassemble the sensor.

●

Do not attach stickers to the sensor or

surrounding area on the rear bumper.

●

Do not modify the sensor or surround-

ing area on the rear bumper.

●

Do not paint the rear bumper any

color other than an official Lexus color.

181

4-5. Using the driving support systems

Driving

The BSM function uses radar sensors to detect the following vehicles traveling in
adjacent lanes and advises the driver of the presence of such vehicles via the indi-
cators on the outside rear view mirrors.

Vehicles that are traveling in areas that are not visible using the outside rear

WARNING

■

Cautions regarding the use of the

function

The driver is solely responsible for safe

driving. Always drive safely, taking care

to observe your surroundings.
The BSM function is a supplementary

function which alerts the driver that a

vehicle is in a blind spot of the outside

rear view mirrors or is approaching rap-

idly from behind into a blind spot. Do not

overly rely on the BSM function. As the

function cannot judge if it is safe to

change lanes, over reliance could lead to

an accident resulting in death or serious

injury.
As the system may not function correctly

under certain conditions, the driver’s own

visual confirmation of safety is necessary.
The RCTA function is only a supplemen-

tary function which alerts the driver that a

vehicle is approaching from the right or

left at the rear of the vehicle. As the

RCTA function may not function cor-

rectly under certain conditions, the

driver’s own visual confirmation of safety

is necessary. Over reliance on this func-

tion may lead to an accident resulting

death or serious injury.

BSM function

182

4-5. Using the driving support systems

view mirrors (the blind spots)
Vehicles that are approaching rapidly from behind in areas that are not visible
using the outside rear view mirrors (the blind spots)

The areas that vehicles can be detected in are outlined below.

The range of each detection area is:

Approximately 1.6 ft. (0.5 m) to 11.5 ft. (3.5 m) from either side of the vehicle

Approximately 3.3 ft. (1 m) forward of the rear bumper
Approximately 9.8 ft. (3 m) from the rear bumper

Approximately 9.8 ft. (3 m) to 197 ft. (60 m) from the rear bumper

: The area between the side of the vehicle and 1.6 ft. (0.5 m) from the side of the vehicle

cannot be detected.

: The greater the difference in speed between your vehicle and the detected vehicle is,

the farther away the vehicle will be detected, causing the outside rear view mirror indi-
cator to illuminate or flash.

■

The BSM function is operational when

The BSM function is operational when all of

the following conditions are met:

●

The BSM main switch is on.

●

The shift lever is in a position other than R.

●

The vehicle speed is greater than approx-

imately 10 mph (16 km/h).

■

The BSM function will detect a vehicle

when

The BSM function will detect a vehicle pres-

ent in the detection area in the following sit-

uations:

●

A vehicle in an adjacent lane overtakes

your vehicle.

●

You overtake a vehicle in an adjacent lane

slowly.

●

Another vehicle enters the detection

area when it changes lanes.

■

Conditions under which the BSM func-

tion will not detect a vehicle

The BSM function is not designed to detect

the following types of vehicles and/or

objects:

●

Small motorcycles, bicycles, pedestrians,
etc.

●

Vehicles traveling in the opposite direc-

tion

BSM function detection areas

A
B
C
D

Lexus RC F (2022 year). Manual in english - page 10